Mechanical gripping tool



p 1948. D. H. McNAUGHTON, sR 2,450,151

MECHANICAL GRIPPING TOOL 2 Shets-Sheet 1 Filed April 10, 1947 IN VENTOR.

ATTD RN EYS S p 1948. D. H. MCNAUGHTON, SR 2,450,151

MECHANICAL GRIPPING TOOL Filed April 10, 1947 2 Sheets-Sheet 2 3%INVENTOR. Q flaw'd H jMt/Vazy/Mon,

ATTD RN EYE Patented Sept. 28, 1948 David H. McNaughton,Sr., Saskatoon,Saskatchewan, Canada, assignor of twenty-five per cent to Paul B.Mitchell, Saskatoon, Saskatchewan,

Canada Application April 10, 1947, Serial No. 740,621

3 Claims.

This invention relates to new and useful improvements in railway tietongs and timber handling tools.

An object of the invention is to provide a tool of this character thatis adapted to lift and carry railway track ties and timber of varioussizes and for use in pulling ties into place under the rail, removingworn out ties, unloading railway track ties and timbers from railwayflat cars and box cars, as well as loading of the same, for pilingrailway track ties and timbers in storage yards, for use in separatingties or timber when close piled prior to applying the tool for thehandling thereof.

Another object of the invention is to provide a device of the characterdescribed, which is practical, strong and durable, can be manufacturedat a low cost and is adapted to firmly grip a tie or piece of timberfrom any position the operator may choose, to enable the tie or timberto be readily lifted and carried from place to place or to drag, haul orup-end a tie or piece of timber as required and to perform each of theseoperations without the requirement of the use of more than one hand ofthe operator.

The device eliminate any specially prepared mechanism for performing theaforementioned objects, and i designed to enable the operator to set thetool down with the handle upright.

Another object of the invention is to provide a tool of this characterthat is provided with a simplified release mechanism which embodiesgreater safety for the operation.

Another object of the invention is to provide a tool of the characterdescribed, having jaws which are held in one arcing position withrelation to the handle, and thereby giving greater speed of operation,lessening of man hours in performing work for which it is designed andenabling the operator to avoid contact with the working parts which comein contact with the ties or timbers that may be treated with creosote orpreservatives injurious to the operator's body, garments and gloves.

With the above and other objects and advantages in View, the inventionconsists of thenovel details of construction, arrangement andcombination of parts more fully hereinafter described, claimed andillustrated in the accompanying drawings in which;

Figure 1 is a side elevational view of an embodiment of the invention;

Figure 2 is a top plan view thereof;

Figure 3 is a front elevational view with the handle in section andFigure 4 is a detailed sectional view of the inner end of the grippingjaws.

Referring more in detail to the drawings, the

tool forming an embodiment of the invention is generally designated bythe numeral Ill, and comprises the elongated fulcrum body H which isslotted at its opposite end at I2 and I3 respectively and the portionson opposite sides of the slots are turned upon themselves at M toprovide pin mounting bearings for the pins 15 on which are pivotallymounted in the slots at the end of the body,'the curved gripping jaws orarms 16 and I1 respectively.

Secured to the upper surface of the body II, in crossed right angularrelation thereto, is the applying bar pivoting member l8 which, at oneend, is provided with upstanding opposed apertured ears [9 which receivethe pin 20 on which the applying bar 21 is pivotally mounted. Mounted onthe opposite end of the member 18 is the curved U-shaped guide member 22which straddle the bar 2| and permits side stress application of theapplying bar, as well as retaining the seat 23 and 24 formed on oppositesides of the bar in perfect position for operating and receiving therod-like ends 25 of the arms 16 and H.

The lower ends of the arms are provided with the pointed rod-like bills26, and the ear carrying end of the member I8 is provided with a spudpoint 21 which enables ties or timbers to be separated one from theother when closely piled, thereby facilitating the use of the tool undersuch circumstances.

In use, the bar 21 i moved downwardly to allow the arms to moveoutwardly to their fullest extent. The tool is applied to a tie T, asshown in Figure 3, with the body I l resting thereon, and upon upwardmovement of the bar 2i, the bills on the arms will be caused to moveinwardly to bite into the tie and firmly grip the tie.

There has thus been provided a tool having a positive grip that issimple, durable and, when applied to a load, is instantly operated togrip or release the load.

It is believed that from the foregoing description, the operation andconstruction of the invention will be apparent to those skilled in theart, and it is to be understood that changes in the minor details ofconstruction, arrangement and combination of parts may be resorted to,provided they fall within the spirit of the invention and the scope ofthe appended claims.

Having thus described the invention, what is claimed as new and desiredto be secured by Letters Patent is:

1. A device of the character described, comprising a fulcrum body,gripping arms pivotally mounted on the ends of said body, a pivotsupporting member secured to said body in crossed right angular relationthereto, a pivot carried by said member, an applying bar carried by saidpivot, seats arranged on the opposite sides of said bar receiving theupper ends of said arms for movement of said arms upon upward anddownward movement of said bar and a U-shaped guide mounted on said pivotsupporting member straddling said bar to guide said bar in upward anddownward movement.

2. The invention as in claim 1, wherein said arms are provided on theirlower ends with pointed bills.

3. The invention as in claim 1, wherein one end of said pivot supportingmember is provided with a spud point. I

DAVID I-I. MCNAUGHTQN, SR.

N 0 references cited.

